User receives duplicate email

Hi,
I have an user that receives twice emails from a specific sender.
The sender is the company information department. They send newsletters to the company to a Distribution Group that has all email accounts in the company and this user receives it twice.
What could it be?

It could be that the group has another group that is a member of, and so he's in two groups (parent and child or two child groups). Depending on where each list is expanded, it might not figure out that he's in there twice.
Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

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Hi,
Agree with Willard. Please check if these duplicate messages have the same Message ID.
If they are sent separately, we can't stop this. If they have the same Message ID, please check whether there is corrupted rules in Outlook.
Besides, please check if there is any third party add-ins from Outlook user side. If the shared mailbox is accessed by 5 users, then we need to disable add-ins on these 5 users' Outlook client.
Best regards,
Belinda
Belinda Ma
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Trevor Seward, MCC
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

SOLVED: Duplicate Emails | Received Using: Unknown | Can't Reply to Emails | BIS

I had an issue with my Bold 9900 where I was receiving duplicate emails. I use BIS and not BES Enterprise Server.
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I searched the forums and google high and low for a solution, but to no avail. I finally broke down and called paid Blackberry Official Support and spent two weeks troubleshooting the issue.   Finally the issue was solved.
If the solutions shown below do not solve the problem for you, then this may. It did for me.
http://www.blackberry.com/btsc/KB13528
http://www.blackberry.com/btsc/KB02567
http://www.blackberry.com/btsc/KB12207
I had 6 email accounts. I was using a T-Mobile SIM Card.   Then I switched providers to Telenor Sweden and my SIM. My email accounts continued to work normally. Then I wanted to add 4 more email accounts. However, when I went to create the first one, I was prompted that I no longer had ANY email accounts and had to recreate all 10 from scratch.   This is when the problem started. The 6 email accounts I had originally set up were the ones receiving the duplicate emails. The 4 new ones were behaving normally.
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Hmmm, wouldn't think the Modem would make difference on that though!?
Couple more things to try...
In your home folder, try trashing this folder...
Quit mail 1st.
/Library/Caches/Mail
reboot.
http://www.hawkwings.net/2006/02/08/rebuild-your-database-and-speed-up-mailapp/

Getting duplicate emails from SharePoint Report Library subscription.

Getting duplicate emails from SharePoint Report Library subscription.
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If you have Exchange, you can track the email from there to see if that yields any value. You can also turn up the diagnostic logging in Central Admin -> Monitoring -> Configure diagnostic logging -> SQL Server Reporting Services, and selecting:
Report Server Email Extension
Report Server Schedule
Report Server Subscription
Turn them up to Verbose in the Trace log, then monitor the ULS log when you identify a user who has received duplicate emails.
Trevor Seward, MCC
Follow or contact me at...
&nbsp&nbsp
This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

User receives duplicate email

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